# Copyright 2012 Josh Durgin # Copyright 2013 Canonical Ltd. # All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. import ddt import math import os import tempfile import mock from oslo_utils import imageutils from oslo_utils import units from cinder import context from cinder import exception import cinder.image.glance from cinder.image import image_utils from cinder import objects from cinder.objects import fields from cinder import test from cinder.tests.unit import fake_constants as fake from cinder.tests.unit import fake_snapshot from cinder.tests.unit import fake_volume from cinder.tests.unit import utils from cinder.tests.unit.volume import test_driver from cinder.volume import configuration as conf import cinder.volume.drivers.rbd as driver from cinder.volume.flows.manager import create_volume # This is used to collect raised exceptions so that tests may check what was # raised. # NOTE: this must be initialised in test setUp(). RAISED_EXCEPTIONS = [] class MockException(Exception): def __init__(self, *args, **kwargs): RAISED_EXCEPTIONS.append(self.__class__) class MockImageNotFoundException(MockException): """Used as mock for rbd.ImageNotFound.""" class MockImageBusyException(MockException): """Used as mock for rbd.ImageBusy.""" class MockImageExistsException(MockException): """Used as mock for rbd.ImageExists.""" def common_mocks(f): """Decorator to set mocks common to all tests. The point of doing these mocks here is so that we don't accidentally set mocks that can't/don't get unset. """ def _FakeRetrying(wait_func=None, original_retrying = driver.utils.retrying.Retrying, *args, **kwargs): return original_retrying(wait_func=lambda *a, **k: 0, *args, **kwargs) def _common_inner_inner1(inst, *args, **kwargs): @mock.patch('retrying.Retrying', _FakeRetrying) @mock.patch.object(driver.RBDDriver, '_get_usage_info') @mock.patch('cinder.volume.drivers.rbd.RBDVolumeProxy') @mock.patch('cinder.volume.drivers.rbd.RADOSClient') @mock.patch('cinder.backup.drivers.ceph.rbd') @mock.patch('cinder.backup.drivers.ceph.rados') def _common_inner_inner2(mock_rados, mock_rbd, mock_client, mock_proxy, mock_usage_info): inst.mock_rbd = mock_rbd inst.mock_rados = mock_rados inst.mock_client = mock_client inst.mock_proxy = mock_proxy inst.mock_rbd.RBD.Error = Exception inst.mock_rados.Error = Exception inst.mock_rbd.ImageBusy = MockImageBusyException inst.mock_rbd.ImageNotFound = MockImageNotFoundException inst.mock_rbd.ImageExists = MockImageExistsException inst.mock_rbd.InvalidArgument = MockImageNotFoundException inst.driver.rbd = inst.mock_rbd inst.driver.rados = inst.mock_rados return f(inst, *args, **kwargs) return _common_inner_inner2() return _common_inner_inner1 CEPH_MON_DUMP = """dumped monmap epoch 1 { "epoch": 1, "fsid": "33630410-6d93-4d66-8e42-3b953cf194aa", "modified": "2013-05-22 17:44:56.343618", "created": "2013-05-22 17:44:56.343618", "mons": [ { "rank": 0, "name": "a", "addr": "[::1]:6789\/0"}, { "rank": 1, "name": "b", "addr": "[::1]:6790\/0"}, { "rank": 2, "name": "c", "addr": "[::1]:6791\/0"}, { "rank": 3, "name": "d", "addr": "127.0.0.1:6792\/0"}, { "rank": 4, "name": "e", "addr": "example.com:6791\/0"}], "quorum": [ 0, 1, 2]} """ def mock_driver_configuration(value): if value == 'max_over_subscription_ratio': return 1.0 if value == 'reserved_percentage': return 0 return 'RBD' @ddt.ddt class RBDTestCase(test.TestCase): def setUp(self): global RAISED_EXCEPTIONS RAISED_EXCEPTIONS = [] super(RBDTestCase, self).setUp() self.cfg = mock.Mock(spec=conf.Configuration) self.cfg.image_conversion_dir = None self.cfg.rbd_cluster_name = 'nondefault' self.cfg.rbd_pool = 'rbd' self.cfg.rbd_ceph_conf = '/etc/ceph/my_ceph.conf' self.cfg.rbd_secret_uuid = None self.cfg.rbd_user = 'cinder' self.cfg.volume_backend_name = None self.cfg.volume_dd_blocksize = '1M' self.cfg.rbd_store_chunk_size = 4 self.cfg.rados_connection_retries = 3 self.cfg.rados_connection_interval = 5 mock_exec = mock.Mock() mock_exec.return_value = ('', '') self.driver = driver.RBDDriver(execute=mock_exec, configuration=self.cfg) self.driver.set_initialized() self.context = context.get_admin_context() self.volume_a = fake_volume.fake_volume_obj( self.context, **{'name': u'volume-0000000a', 'id': '4c39c3c7-168f-4b32-b585-77f1b3bf0a38', 'size': 10}) self.volume_b = fake_volume.fake_volume_obj( self.context, **{'name': u'volume-0000000b', 'id': '0c7d1f44-5a06-403f-bb82-ae7ad0d693a6', 'size': 10}) self.snapshot = fake_snapshot.fake_snapshot_obj( self.context, name='snapshot-0000000a') @ddt.data({'cluster_name': None, 'pool_name': 'rbd'}, {'cluster_name': 'volumes', 'pool_name': None}) @ddt.unpack def test_min_config(self, cluster_name, pool_name): self.cfg.rbd_cluster_name = cluster_name self.cfg.rbd_pool = pool_name with mock.patch('cinder.volume.drivers.rbd.rados'): self.assertRaises(exception.InvalidConfigurationValue, self.driver.check_for_setup_error) def test_parse_replication_config_empty(self): self.driver._parse_replication_configs([]) self.assertEqual([], self.driver._replication_targets) def test_parse_replication_config_missing(self): """Parsing replication_device without required backend_id.""" cfg = [{'conf': '/etc/ceph/secondary.conf'}] self.assertRaises(exception.InvalidConfigurationValue, self.driver._parse_replication_configs, cfg) def test_parse_replication_config_defaults(self): """Parsing replication_device with default conf and user.""" cfg = [{'backend_id': 'secondary-backend'}] expected = [{'name': 'secondary-backend', 'conf': '/etc/ceph/secondary-backend.conf', 'user': 'cinder'}] self.driver._parse_replication_configs(cfg) self.assertEqual(expected, self.driver._replication_targets) @ddt.data(1, 2) def test_parse_replication_config(self, num_targets): cfg = [{'backend_id': 'secondary-backend', 'conf': 'foo', 'user': 'bar'}, {'backend_id': 'tertiary-backend'}] expected = [{'name': 'secondary-backend', 'conf': 'foo', 'user': 'bar'}, {'name': 'tertiary-backend', 'conf': '/etc/ceph/tertiary-backend.conf', 'user': 'cinder'}] self.driver._parse_replication_configs(cfg[:num_targets]) self.assertEqual(expected[:num_targets], self.driver._replication_targets) def test_do_setup_replication_disabled(self): with mock.patch.object(self.driver.configuration, 'safe_get', return_value=None): self.driver.do_setup(self.context) self.assertFalse(self.driver._is_replication_enabled) self.assertEqual([], self.driver._replication_targets) self.assertEqual([], self.driver._target_names) self.assertEqual({'name': self.cfg.rbd_cluster_name, 'conf': self.cfg.rbd_ceph_conf, 'user': self.cfg.rbd_user}, self.driver._active_config) def test_do_setup_replication(self): cfg = [{'backend_id': 'secondary-backend', 'conf': 'foo', 'user': 'bar'}] expected = [{'name': 'secondary-backend', 'conf': 'foo', 'user': 'bar'}] with mock.patch.object(self.driver.configuration, 'safe_get', return_value=cfg): self.driver.do_setup(self.context) self.assertTrue(self.driver._is_replication_enabled) self.assertEqual(expected, self.driver._replication_targets) self.assertEqual({'name': self.cfg.rbd_cluster_name, 'conf': self.cfg.rbd_ceph_conf, 'user': self.cfg.rbd_user}, self.driver._active_config) def test_do_setup_replication_failed_over(self): cfg = [{'backend_id': 'secondary-backend', 'conf': 'foo', 'user': 'bar'}] expected = [{'name': 'secondary-backend', 'conf': 'foo', 'user': 'bar'}] self.driver._active_backend_id = 'secondary-backend' with mock.patch.object(self.driver.configuration, 'safe_get', return_value=cfg): self.driver.do_setup(self.context) self.assertTrue(self.driver._is_replication_enabled) self.assertEqual(expected, self.driver._replication_targets) self.assertEqual(expected[0], self.driver._active_config) def test_do_setup_replication_failed_over_unknown(self): cfg = [{'backend_id': 'secondary-backend', 'conf': 'foo', 'user': 'bar'}] self.driver._active_backend_id = 'unknown-backend' with mock.patch.object(self.driver.configuration, 'safe_get', return_value=cfg): self.assertRaises(exception.InvalidReplicationTarget, self.driver.do_setup, self.context) @mock.patch.object(driver.RBDDriver, '_enable_replication', return_value=mock.sentinel.volume_update) def test_enable_replication_if_needed_replicated_volume(self, mock_enable): self.volume_a.volume_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE_ID, extra_specs={'replication_enabled': ' True'}) res = self.driver._enable_replication_if_needed(self.volume_a) self.assertEqual(mock.sentinel.volume_update, res) mock_enable.assert_called_once_with(self.volume_a) @ddt.data(False, True) @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_enable_replication_if_needed_non_replicated(self, enabled, mock_enable): self.driver._is_replication_enabled = enabled res = self.driver._enable_replication_if_needed(self.volume_a) if enabled: expect = {'replication_status': fields.ReplicationStatus.DISABLED} else: expect = None self.assertEqual(expect, res) mock_enable.assert_not_called() @ddt.data(True, False) @common_mocks def test_enable_replication(self, journaling_enabled): """Test _enable_replication method. We want to confirm that if the Ceph backend has globally enabled journaling we don't try to enable it again and we properly indicate with our return value that it was already enabled. """ journaling_feat = 1 self.driver.rbd.RBD_FEATURE_JOURNALING = journaling_feat image = self.mock_proxy.return_value.__enter__.return_value if journaling_enabled: image.features.return_value = journaling_feat else: image.features.return_value = 0 enabled = str(journaling_enabled).lower() expected = { 'replication_driver_data': '{"had_journaling":%s}' % enabled, 'replication_status': 'enabled', } res = self.driver._enable_replication(self.volume_a) self.assertEqual(expected, res) if journaling_enabled: image.update_features.assert_not_called() else: image.update_features.assert_called_once_with(journaling_feat, True) image.mirror_image_enable.assert_called_once_with() @ddt.data('true', 'false') @common_mocks def test_disable_replication(self, had_journaling): driver_data = '{"had_journaling": %s}' % had_journaling self.volume_a.replication_driver_data = driver_data image = self.mock_proxy.return_value.__enter__.return_value res = self.driver._disable_replication(self.volume_a) expected = {'replication_status': fields.ReplicationStatus.DISABLED, 'replication_driver_data': None} self.assertEqual(expected, res) image.mirror_image_disable.assert_called_once_with(False) if had_journaling == 'true': image.update_features.assert_not_called() else: image.update_features.assert_called_once_with( self.driver.rbd.RBD_FEATURE_JOURNALING, False) @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_create_volume(self, mock_enable_repl): client = self.mock_client.return_value client.__enter__.return_value = client res = self.driver.create_volume(self.volume_a) self.assertIsNone(res) chunk_size = self.cfg.rbd_store_chunk_size * units.Mi order = int(math.log(chunk_size, 2)) args = [client.ioctx, str(self.volume_a.name), self.volume_a.size * units.Gi, order] kwargs = {'old_format': False, 'features': client.features} self.mock_rbd.RBD.return_value.create.assert_called_once_with( *args, **kwargs) client.__enter__.assert_called_once_with() client.__exit__.assert_called_once_with(None, None, None) mock_enable_repl.assert_not_called() @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_create_volume_replicated(self, mock_enable_repl): self.volume_a.volume_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE_ID, extra_specs={'replication_enabled': ' True'}) client = self.mock_client.return_value client.__enter__.return_value = client expected_update = { 'replication_status': 'enabled', 'replication_driver_data': '{"had_journaling": false}' } mock_enable_repl.return_value = expected_update res = self.driver.create_volume(self.volume_a) self.assertEqual(expected_update, res) mock_enable_repl.assert_called_once_with(self.volume_a) chunk_size = self.cfg.rbd_store_chunk_size * units.Mi order = int(math.log(chunk_size, 2)) self.mock_rbd.RBD.return_value.create.assert_called_once_with( client.ioctx, self.volume_a.name, self.volume_a.size * units.Gi, order, old_format=False, features=client.features) client.__enter__.assert_called_once_with() client.__exit__.assert_called_once_with(None, None, None) @common_mocks def test_create_encrypted_volume(self): self.volume_a.encryption_key_id = \ '00000000-0000-0000-0000-000000000000' self.assertRaises(exception.VolumeDriverException, self.driver.create_volume, self.volume_a) @common_mocks def test_manage_existing_get_size(self): with mock.patch.object(self.driver.rbd.Image(), 'size') as \ mock_rbd_image_size: with mock.patch.object(self.driver.rbd.Image(), 'close') \ as mock_rbd_image_close: mock_rbd_image_size.return_value = 2 * units.Gi existing_ref = {'source-name': self.volume_a.name} return_size = self.driver.manage_existing_get_size( self.volume_a, existing_ref) self.assertEqual(2, return_size) mock_rbd_image_size.assert_called_once_with() mock_rbd_image_close.assert_called_once_with() @common_mocks def test_manage_existing_get_non_integer_size(self): rbd_image = self.driver.rbd.Image.return_value rbd_image.size.return_value = int(1.75 * units.Gi) existing_ref = {'source-name': self.volume_a.name} return_size = self.driver.manage_existing_get_size(self.volume_a, existing_ref) self.assertEqual(2, return_size) rbd_image.size.assert_called_once_with() rbd_image.close.assert_called_once_with() @common_mocks def test_manage_existing_get_invalid_size(self): with mock.patch.object(self.driver.rbd.Image(), 'size') as \ mock_rbd_image_size: with mock.patch.object(self.driver.rbd.Image(), 'close') \ as mock_rbd_image_close: mock_rbd_image_size.return_value = 'abcd' existing_ref = {'source-name': self.volume_a.name} self.assertRaises(exception.VolumeBackendAPIException, self.driver.manage_existing_get_size, self.volume_a, existing_ref) mock_rbd_image_size.assert_called_once_with() mock_rbd_image_close.assert_called_once_with() @common_mocks def test_manage_existing(self): client = self.mock_client.return_value client.__enter__.return_value = client with mock.patch.object(self.driver.rbd.RBD(), 'rename') as \ mock_rbd_image_rename: exist_volume = 'vol-exist' existing_ref = {'source-name': exist_volume} mock_rbd_image_rename.return_value = 0 self.driver.manage_existing(self.volume_a, existing_ref) mock_rbd_image_rename.assert_called_with( client.ioctx, exist_volume, self.volume_a.name) @common_mocks def test_manage_existing_with_exist_rbd_image(self): client = self.mock_client.return_value client.__enter__.return_value = client self.mock_rbd.RBD.return_value.rename.side_effect = ( MockImageExistsException) exist_volume = 'vol-exist' existing_ref = {'source-name': exist_volume} self.assertRaises(self.mock_rbd.ImageExists, self.driver.manage_existing, self.volume_a, existing_ref) # Make sure the exception was raised self.assertEqual(RAISED_EXCEPTIONS, [self.mock_rbd.ImageExists]) @common_mocks def test_manage_existing_with_invalid_rbd_image(self): self.mock_rbd.Image.side_effect = self.mock_rbd.ImageNotFound invalid_volume = 'vol-invalid' invalid_ref = {'source-name': invalid_volume} self.assertRaises(exception.ManageExistingInvalidReference, self.driver.manage_existing_get_size, self.volume_a, invalid_ref) # Make sure the exception was raised self.assertEqual([self.mock_rbd.ImageNotFound], RAISED_EXCEPTIONS) @common_mocks def test_delete_backup_snaps(self): self.driver.rbd.Image.remove_snap = mock.Mock() with mock.patch.object(self.driver, '_get_backup_snaps') as \ mock_get_backup_snaps: mock_get_backup_snaps.return_value = [{'name': 'snap1'}] rbd_image = self.driver.rbd.Image() self.driver._delete_backup_snaps(rbd_image) mock_get_backup_snaps.assert_called_once_with(rbd_image) self.assertTrue( self.driver.rbd.Image.return_value.remove_snap.called) @common_mocks def test_delete_volume(self): client = self.mock_client.return_value self.driver.rbd.Image.return_value.list_snaps.return_value = [] with mock.patch.object(self.driver, '_get_clone_info') as \ mock_get_clone_info: with mock.patch.object(self.driver, '_delete_backup_snaps') as \ mock_delete_backup_snaps: mock_get_clone_info.return_value = (None, None, None) self.driver.delete_volume(self.volume_a) mock_get_clone_info.assert_called_once_with( self.mock_rbd.Image.return_value, self.volume_a.name, None) (self.driver.rbd.Image.return_value .list_snaps.assert_called_once_with()) client.__enter__.assert_called_once_with() client.__exit__.assert_called_once_with(None, None, None) mock_delete_backup_snaps.assert_called_once_with( self.mock_rbd.Image.return_value) self.assertFalse( self.driver.rbd.Image.return_value.unprotect_snap.called) self.assertEqual( 1, self.driver.rbd.RBD.return_value.remove.call_count) @common_mocks def delete_volume_not_found(self): self.mock_rbd.Image.side_effect = self.mock_rbd.ImageNotFound self.assertIsNone(self.driver.delete_volume(self.volume_a)) self.mock_rbd.Image.assert_called_once_with() # Make sure the exception was raised self.assertEqual(RAISED_EXCEPTIONS, [self.mock_rbd.ImageNotFound]) @common_mocks def test_delete_busy_volume(self): self.mock_rbd.Image.return_value.list_snaps.return_value = [] self.mock_rbd.RBD.return_value.remove.side_effect = ( self.mock_rbd.ImageBusy) with mock.patch.object(self.driver, '_get_clone_info') as \ mock_get_clone_info: mock_get_clone_info.return_value = (None, None, None) with mock.patch.object(self.driver, '_delete_backup_snaps') as \ mock_delete_backup_snaps: with mock.patch.object(driver, 'RADOSClient') as \ mock_rados_client: self.assertRaises(exception.VolumeIsBusy, self.driver.delete_volume, self.volume_a) mock_get_clone_info.assert_called_once_with( self.mock_rbd.Image.return_value, self.volume_a.name, None) (self.mock_rbd.Image.return_value.list_snaps .assert_called_once_with()) mock_rados_client.assert_called_once_with(self.driver) mock_delete_backup_snaps.assert_called_once_with( self.mock_rbd.Image.return_value) self.assertFalse( self.mock_rbd.Image.return_value.unprotect_snap.called) self.assertEqual( 3, self.mock_rbd.RBD.return_value.remove.call_count) self.assertEqual(3, len(RAISED_EXCEPTIONS)) # Make sure the exception was raised self.assertIn(self.mock_rbd.ImageBusy, RAISED_EXCEPTIONS) @common_mocks def test_delete_volume_not_found(self): self.mock_rbd.Image.return_value.list_snaps.return_value = [] self.mock_rbd.RBD.return_value.remove.side_effect = ( self.mock_rbd.ImageNotFound) with mock.patch.object(self.driver, '_get_clone_info') as \ mock_get_clone_info: mock_get_clone_info.return_value = (None, None, None) with mock.patch.object(self.driver, '_delete_backup_snaps') as \ mock_delete_backup_snaps: with mock.patch.object(driver, 'RADOSClient') as \ mock_rados_client: self.assertIsNone(self.driver.delete_volume(self.volume_a)) mock_get_clone_info.assert_called_once_with( self.mock_rbd.Image.return_value, self.volume_a.name, None) (self.mock_rbd.Image.return_value.list_snaps .assert_called_once_with()) mock_rados_client.assert_called_once_with(self.driver) mock_delete_backup_snaps.assert_called_once_with( self.mock_rbd.Image.return_value) self.assertFalse( self.mock_rbd.Image.return_value.unprotect_snap.called) self.assertEqual( 1, self.mock_rbd.RBD.return_value.remove.call_count) # Make sure the exception was raised self.assertEqual(RAISED_EXCEPTIONS, [self.mock_rbd.ImageNotFound]) @common_mocks @mock.patch('cinder.objects.Volume.get_by_id') def test_create_snapshot(self, volume_get_by_id): volume_get_by_id.return_value = self.volume_a proxy = self.mock_proxy.return_value proxy.__enter__.return_value = proxy self.driver.create_snapshot(self.snapshot) args = [str(self.snapshot.name)] proxy.create_snap.assert_called_with(*args) proxy.protect_snap.assert_called_with(*args) @common_mocks @mock.patch('cinder.objects.Volume.get_by_id') def test_delete_snapshot(self, volume_get_by_id): volume_get_by_id.return_value = self.volume_a proxy = self.mock_proxy.return_value proxy.__enter__.return_value = proxy self.driver.delete_snapshot(self.snapshot) proxy.remove_snap.assert_called_with(self.snapshot.name) proxy.unprotect_snap.assert_called_with(self.snapshot.name) @common_mocks @mock.patch('cinder.objects.Volume.get_by_id') def test_delete_notfound_snapshot(self, volume_get_by_id): volume_get_by_id.return_value = self.volume_a proxy = self.mock_proxy.return_value proxy.__enter__.return_value = proxy proxy.unprotect_snap.side_effect = ( self.mock_rbd.ImageNotFound) self.driver.delete_snapshot(self.snapshot) proxy.remove_snap.assert_called_with(self.snapshot.name) proxy.unprotect_snap.assert_called_with(self.snapshot.name) @common_mocks @mock.patch('cinder.objects.Volume.get_by_id') def test_delete_notfound_on_remove_snapshot(self, volume_get_by_id): volume_get_by_id.return_value = self.volume_a proxy = self.mock_proxy.return_value proxy.__enter__.return_value = proxy proxy.remove_snap.side_effect = ( self.mock_rbd.ImageNotFound) self.driver.delete_snapshot(self.snapshot) proxy.remove_snap.assert_called_with(self.snapshot.name) proxy.unprotect_snap.assert_called_with(self.snapshot.name) @common_mocks @mock.patch('cinder.objects.Volume.get_by_id') def test_delete_unprotected_snapshot(self, volume_get_by_id): volume_get_by_id.return_value = self.volume_a proxy = self.mock_proxy.return_value proxy.__enter__.return_value = proxy proxy.unprotect_snap.side_effect = self.mock_rbd.InvalidArgument self.driver.delete_snapshot(self.snapshot) self.assertTrue(proxy.unprotect_snap.called) self.assertTrue(proxy.remove_snap.called) @common_mocks @mock.patch('cinder.objects.Volume.get_by_id') def test_delete_busy_snapshot(self, volume_get_by_id): volume_get_by_id.return_value = self.volume_a proxy = self.mock_proxy.return_value proxy.__enter__.return_value = proxy proxy.unprotect_snap.side_effect = ( self.mock_rbd.ImageBusy) with mock.patch.object(self.driver, '_get_children_info') as \ mock_get_children_info: mock_get_children_info.return_value = [('pool', 'volume2')] with mock.patch.object(driver, 'LOG') as \ mock_log: self.assertRaises(exception.SnapshotIsBusy, self.driver.delete_snapshot, self.snapshot) mock_get_children_info.assert_called_once_with( proxy, self.snapshot.name) self.assertTrue(mock_log.info.called) self.assertTrue(proxy.unprotect_snap.called) self.assertFalse(proxy.remove_snap.called) @common_mocks def test_get_children_info(self): volume = self.mock_proxy volume.set_snap = mock.Mock() volume.list_children = mock.Mock() list_children = [('pool', 'volume2')] volume.list_children.return_value = list_children info = self.driver._get_children_info(volume, self.snapshot['name']) self.assertEqual(list_children, info) @common_mocks def test_get_clone_info(self): volume = self.mock_rbd.Image() volume.set_snap = mock.Mock() volume.parent_info = mock.Mock() parent_info = ('a', 'b', '%s.clone_snap' % (self.volume_a.name)) volume.parent_info.return_value = parent_info info = self.driver._get_clone_info(volume, self.volume_a.name) self.assertEqual(parent_info, info) self.assertFalse(volume.set_snap.called) volume.parent_info.assert_called_once_with() @common_mocks def test_get_clone_info_w_snap(self): volume = self.mock_rbd.Image() volume.set_snap = mock.Mock() volume.parent_info = mock.Mock() parent_info = ('a', 'b', '%s.clone_snap' % (self.volume_a.name)) volume.parent_info.return_value = parent_info snapshot = self.mock_rbd.ImageSnapshot() info = self.driver._get_clone_info(volume, self.volume_a.name, snap=snapshot) self.assertEqual(parent_info, info) self.assertEqual(2, volume.set_snap.call_count) volume.parent_info.assert_called_once_with() @common_mocks def test_get_clone_info_w_exception(self): volume = self.mock_rbd.Image() volume.set_snap = mock.Mock() volume.parent_info = mock.Mock() volume.parent_info.side_effect = self.mock_rbd.ImageNotFound snapshot = self.mock_rbd.ImageSnapshot() info = self.driver._get_clone_info(volume, self.volume_a.name, snap=snapshot) self.assertEqual((None, None, None), info) self.assertEqual(2, volume.set_snap.call_count) volume.parent_info.assert_called_once_with() # Make sure the exception was raised self.assertEqual(RAISED_EXCEPTIONS, [self.mock_rbd.ImageNotFound]) @common_mocks def test_get_clone_info_deleted_volume(self): volume = self.mock_rbd.Image() volume.set_snap = mock.Mock() volume.parent_info = mock.Mock() parent_info = ('a', 'b', '%s.clone_snap' % (self.volume_a.name)) volume.parent_info.return_value = parent_info info = self.driver._get_clone_info(volume, "%s.deleted" % (self.volume_a.name)) self.assertEqual(parent_info, info) self.assertFalse(volume.set_snap.called) volume.parent_info.assert_called_once_with() @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_create_cloned_volume_same_size(self, mock_enable_repl): self.cfg.rbd_max_clone_depth = 2 with mock.patch.object(self.driver, '_get_clone_depth') as \ mock_get_clone_depth: # Try with no flatten required with mock.patch.object(self.driver, '_resize') as mock_resize: mock_get_clone_depth.return_value = 1 res = self.driver.create_cloned_volume(self.volume_b, self.volume_a) self.assertIsNone(res) (self.mock_rbd.Image.return_value.create_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) (self.mock_rbd.Image.return_value.protect_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) self.assertEqual( 1, self.mock_rbd.RBD.return_value.clone.call_count) self.mock_rbd.Image.return_value.close \ .assert_called_once_with() self.assertTrue(mock_get_clone_depth.called) mock_resize.assert_not_called() mock_enable_repl.assert_not_called() @common_mocks @mock.patch.object(driver.RBDDriver, '_get_clone_depth', return_value=1) @mock.patch.object(driver.RBDDriver, '_resize') @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_create_cloned_volume_replicated(self, mock_enable_repl, mock_resize, mock_get_clone_depth): self.cfg.rbd_max_clone_depth = 2 self.volume_b.volume_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE_ID, extra_specs={'replication_enabled': ' True'}) expected_update = { 'replication_status': 'enabled', 'replication_driver_data': '{"had_journaling": false}' } mock_enable_repl.return_value = expected_update res = self.driver.create_cloned_volume(self.volume_b, self.volume_a) self.assertEqual(expected_update, res) mock_enable_repl.assert_called_once_with(self.volume_b) name = self.volume_b.name image = self.mock_rbd.Image.return_value image.create_snap.assert_called_once_with(name + '.clone_snap') image.protect_snap.assert_called_once_with(name + '.clone_snap') self.assertEqual(1, self.mock_rbd.RBD.return_value.clone.call_count) self.mock_rbd.Image.return_value.close.assert_called_once_with() mock_get_clone_depth.assert_called_once_with( self.mock_client().__enter__(), self.volume_a.name) mock_resize.assert_not_called() @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_create_cloned_volume_different_size(self, mock_enable_repl): self.cfg.rbd_max_clone_depth = 2 with mock.patch.object(self.driver, '_get_clone_depth') as \ mock_get_clone_depth: # Try with no flatten required with mock.patch.object(self.driver, '_resize') as mock_resize: mock_get_clone_depth.return_value = 1 self.volume_b.size = 20 res = self.driver.create_cloned_volume(self.volume_b, self.volume_a) self.assertIsNone(res) (self.mock_rbd.Image.return_value.create_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) (self.mock_rbd.Image.return_value.protect_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) self.assertEqual( 1, self.mock_rbd.RBD.return_value.clone.call_count) self.mock_rbd.Image.return_value.close \ .assert_called_once_with() self.assertTrue(mock_get_clone_depth.called) self.assertEqual( 1, mock_resize.call_count) mock_enable_repl.assert_not_called() @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_create_cloned_volume_w_flatten(self, mock_enable_repl): self.cfg.rbd_max_clone_depth = 1 with mock.patch.object(self.driver, '_get_clone_info') as \ mock_get_clone_info: mock_get_clone_info.return_value = ( ('fake_pool', self.volume_b.name, '.'.join((self.volume_b.name, 'clone_snap')))) with mock.patch.object(self.driver, '_get_clone_depth') as \ mock_get_clone_depth: # Try with no flatten required mock_get_clone_depth.return_value = 1 res = self.driver.create_cloned_volume(self.volume_b, self.volume_a) self.assertIsNone(res) (self.mock_rbd.Image.return_value.create_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) (self.mock_rbd.Image.return_value.protect_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) self.assertEqual( 1, self.mock_rbd.RBD.return_value.clone.call_count) (self.mock_rbd.Image.return_value.unprotect_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) (self.mock_rbd.Image.return_value.remove_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) # We expect the driver to close both volumes, so 2 is expected self.assertEqual( 2, self.mock_rbd.Image.return_value.close.call_count) self.assertTrue(mock_get_clone_depth.called) mock_enable_repl.assert_not_called() @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_create_cloned_volume_w_clone_exception(self, mock_enable_repl): self.cfg.rbd_max_clone_depth = 2 self.mock_rbd.RBD.return_value.clone.side_effect = ( self.mock_rbd.RBD.Error) with mock.patch.object(self.driver, '_get_clone_depth') as \ mock_get_clone_depth: # Try with no flatten required mock_get_clone_depth.return_value = 1 self.assertRaises(self.mock_rbd.RBD.Error, self.driver.create_cloned_volume, self.volume_b, self.volume_a) (self.mock_rbd.Image.return_value.create_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) (self.mock_rbd.Image.return_value.protect_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) self.assertEqual( 1, self.mock_rbd.RBD.return_value.clone.call_count) (self.mock_rbd.Image.return_value.unprotect_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) (self.mock_rbd.Image.return_value.remove_snap .assert_called_once_with('.'.join( (self.volume_b.name, 'clone_snap')))) self.mock_rbd.Image.return_value.close.assert_called_once_with() mock_enable_repl.assert_not_called() @common_mocks def test_good_locations(self): locations = ['rbd://fsid/pool/image/snap', 'rbd://%2F/%2F/%2F/%2F', ] map(self.driver._parse_location, locations) @common_mocks def test_bad_locations(self): locations = ['rbd://image', 'http://path/to/somewhere/else', 'rbd://image/extra', 'rbd://image/', 'rbd://fsid/pool/image/', 'rbd://fsid/pool/image/snap/', 'rbd://///', ] for loc in locations: self.assertRaises(exception.ImageUnacceptable, self.driver._parse_location, loc) self.assertFalse( self.driver._is_cloneable(loc, {'disk_format': 'raw'})) @common_mocks def test_cloneable(self): with mock.patch.object(self.driver, '_get_fsid') as mock_get_fsid: mock_get_fsid.return_value = 'abc' location = 'rbd://abc/pool/image/snap' info = {'disk_format': 'raw'} self.assertTrue(self.driver._is_cloneable(location, info)) self.assertTrue(mock_get_fsid.called) @common_mocks def test_uncloneable_different_fsid(self): with mock.patch.object(self.driver, '_get_fsid') as mock_get_fsid: mock_get_fsid.return_value = 'abc' location = 'rbd://def/pool/image/snap' self.assertFalse( self.driver._is_cloneable(location, {'disk_format': 'raw'})) self.assertTrue(mock_get_fsid.called) @common_mocks def test_uncloneable_unreadable(self): with mock.patch.object(self.driver, '_get_fsid') as mock_get_fsid: mock_get_fsid.return_value = 'abc' location = 'rbd://abc/pool/image/snap' self.driver.rbd.Error = Exception self.mock_proxy.side_effect = Exception args = [location, {'disk_format': 'raw'}] self.assertFalse(self.driver._is_cloneable(*args)) self.assertEqual(1, self.mock_proxy.call_count) self.assertTrue(mock_get_fsid.called) @common_mocks def test_uncloneable_bad_format(self): with mock.patch.object(self.driver, '_get_fsid') as mock_get_fsid: mock_get_fsid.return_value = 'abc' location = 'rbd://abc/pool/image/snap' formats = ['qcow2', 'vmdk', 'vdi'] for f in formats: self.assertFalse( self.driver._is_cloneable(location, {'disk_format': f})) self.assertTrue(mock_get_fsid.called) def _copy_image(self): with mock.patch.object(tempfile, 'NamedTemporaryFile'): with mock.patch.object(os.path, 'exists') as mock_exists: mock_exists.return_value = True with mock.patch.object(image_utils, 'fetch_to_raw'): with mock.patch.object(self.driver, 'delete_volume'): with mock.patch.object(self.driver, '_resize'): mock_image_service = mock.MagicMock() args = [None, self.volume_a, mock_image_service, None] self.driver.copy_image_to_volume(*args) @common_mocks def test_copy_image_no_volume_tmp(self): self.cfg.image_conversion_dir = None self._copy_image() @common_mocks def test_copy_image_volume_tmp(self): self.cfg.image_conversion_dir = '/var/run/cinder/tmp' self._copy_image() @ddt.data(True, False) @common_mocks def test_update_volume_stats(self, replication_enabled): client = self.mock_client.return_value client.__enter__.return_value = client client.cluster = mock.Mock() client.cluster.mon_command = mock.Mock() client.cluster.mon_command.return_value = ( 0, '{"stats":{"total_bytes":64385286144,' '"total_used_bytes":3289628672,"total_avail_bytes":61095657472},' '"pools":[{"name":"rbd","id":2,"stats":{"kb_used":1510197,' '"bytes_used":1546440971,"max_avail":28987613184,"objects":412}},' '{"name":"volumes","id":3,"stats":{"kb_used":0,"bytes_used":0,' '"max_avail":28987613184,"objects":0}}]}\n', '') expected = dict( volume_backend_name='RBD', replication_enabled=replication_enabled, vendor_name='Open Source', driver_version=self.driver.VERSION, storage_protocol='ceph', total_capacity_gb=28.44, free_capacity_gb=27.0, reserved_percentage=0, thin_provisioning_support=True, provisioned_capacity_gb=0.0, max_over_subscription_ratio=1.0, multiattach=False) if replication_enabled: targets = [{'backend_id': 'secondary-backend'}, {'backend_id': 'tertiary-backend'}] with mock.patch.object(self.driver.configuration, 'safe_get', return_value=targets): self.driver._do_setup_replication() expected['replication_targets'] = [t['backend_id']for t in targets] expected['replication_targets'].append('default') self.mock_object(self.driver.configuration, 'safe_get', mock_driver_configuration) actual = self.driver.get_volume_stats(True) client.cluster.mon_command.assert_called_once_with( '{"prefix":"df", "format":"json"}', '') self.assertDictEqual(expected, actual) @common_mocks def test_update_volume_stats_error(self): client = self.mock_client.return_value client.__enter__.return_value = client client.cluster = mock.Mock() client.cluster.mon_command = mock.Mock() client.cluster.mon_command.return_value = (22, '', '') self.mock_object(self.driver.configuration, 'safe_get', mock_driver_configuration) expected = dict(volume_backend_name='RBD', replication_enabled=False, vendor_name='Open Source', driver_version=self.driver.VERSION, storage_protocol='ceph', total_capacity_gb='unknown', free_capacity_gb='unknown', reserved_percentage=0, multiattach=False, provisioned_capacity_gb=0.0, max_over_subscription_ratio=1.0, thin_provisioning_support=True) actual = self.driver.get_volume_stats(True) client.cluster.mon_command.assert_called_once_with( '{"prefix":"df", "format":"json"}', '') self.assertDictEqual(expected, actual) @common_mocks def test_get_mon_addrs(self): with mock.patch.object(self.driver, '_execute') as mock_execute: mock_execute.return_value = (CEPH_MON_DUMP, '') hosts = ['::1', '::1', '::1', '127.0.0.1', 'example.com'] ports = ['6789', '6790', '6791', '6792', '6791'] self.assertEqual((hosts, ports), self.driver._get_mon_addrs()) @common_mocks def test_initialize_connection(self): hosts = ['::1', '::1', '::1', '127.0.0.1', 'example.com'] ports = ['6789', '6790', '6791', '6792', '6791'] with mock.patch.object(self.driver, '_get_mon_addrs') as \ mock_get_mon_addrs: mock_get_mon_addrs.return_value = (hosts, ports) expected = { 'driver_volume_type': 'rbd', 'data': { 'name': '%s/%s' % (self.cfg.rbd_pool, self.volume_a.name), 'hosts': hosts, 'ports': ports, 'cluster_name': self.cfg.rbd_cluster_name, 'auth_enabled': True, 'auth_username': self.cfg.rbd_user, 'secret_type': 'ceph', 'secret_uuid': None, 'volume_id': self.volume_a.id } } actual = self.driver.initialize_connection(self.volume_a, None) self.assertDictEqual(expected, actual) self.assertTrue(mock_get_mon_addrs.called) @ddt.data({'rbd_chunk_size': 1, 'order': 20}, {'rbd_chunk_size': 8, 'order': 23}, {'rbd_chunk_size': 32, 'order': 25}) @ddt.unpack @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_clone(self, mock_enable_repl, rbd_chunk_size, order): self.cfg.rbd_store_chunk_size = rbd_chunk_size src_pool = u'images' src_image = u'image-name' src_snap = u'snapshot-name' client_stack = [] def mock__enter__(inst): def _inner(): client_stack.append(inst) return inst return _inner client = self.mock_client.return_value # capture both rados client used to perform the clone client.__enter__.side_effect = mock__enter__(client) res = self.driver._clone(self.volume_a, src_pool, src_image, src_snap) self.assertEqual({}, res) args = [client_stack[0].ioctx, str(src_image), str(src_snap), client_stack[1].ioctx, str(self.volume_a.name)] kwargs = {'features': client.features, 'order': order} self.mock_rbd.RBD.return_value.clone.assert_called_once_with( *args, **kwargs) self.assertEqual(2, client.__enter__.call_count) mock_enable_repl.assert_not_called() @common_mocks @mock.patch.object(driver.RBDDriver, '_enable_replication') def test_clone_replicated(self, mock_enable_repl): rbd_chunk_size = 1 order = 20 self.volume_a.volume_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE_ID, extra_specs={'replication_enabled': ' True'}) expected_update = { 'replication_status': 'enabled', 'replication_driver_data': '{"had_journaling": false}' } mock_enable_repl.return_value = expected_update self.cfg.rbd_store_chunk_size = rbd_chunk_size src_pool = u'images' src_image = u'image-name' src_snap = u'snapshot-name' client_stack = [] def mock__enter__(inst): def _inner(): client_stack.append(inst) return inst return _inner client = self.mock_client.return_value # capture both rados client used to perform the clone client.__enter__.side_effect = mock__enter__(client) res = self.driver._clone(self.volume_a, src_pool, src_image, src_snap) self.assertEqual(expected_update, res) mock_enable_repl.assert_called_once_with(self.volume_a) args = [client_stack[0].ioctx, str(src_image), str(src_snap), client_stack[1].ioctx, str(self.volume_a.name)] kwargs = {'features': client.features, 'order': order} self.mock_rbd.RBD.return_value.clone.assert_called_once_with( *args, **kwargs) self.assertEqual(2, client.__enter__.call_count) @ddt.data({}, {'replication_status': 'enabled', 'replication_driver_data': '{"had_journaling": false}'}) @common_mocks @mock.patch.object(driver.RBDDriver, '_is_cloneable', return_value=True) def test_clone_image_replication(self, return_value, mock_cloneable): mock_clone = self.mock_object(self.driver, '_clone', return_value=return_value) image_loc = ('rbd://fee/fi/fo/fum', None) image_meta = {'disk_format': 'raw', 'id': 'id.foo'} res = self.driver.clone_image(self.context, self.volume_a, image_loc, image_meta, mock.Mock()) expected = return_value.copy() expected['provider_location'] = None self.assertEqual((expected, True), res) mock_clone.assert_called_once_with(self.volume_a, 'fi', 'fo', 'fum') @common_mocks @mock.patch.object(driver.RBDDriver, '_clone', return_value=mock.sentinel.volume_update) @mock.patch.object(driver.RBDDriver, '_resize', mock.Mock()) def test_create_vol_from_snap_replication(self, mock_clone): self.cfg.rbd_flatten_volume_from_snapshot = False snapshot = mock.Mock() res = self.driver.create_volume_from_snapshot(self.volume_a, snapshot) self.assertEqual(mock.sentinel.volume_update, res) mock_clone.assert_called_once_with(self.volume_a, self.cfg.rbd_pool, snapshot.volume_name, snapshot.name) @common_mocks def test_extend_volume(self): fake_size = '20' size = int(fake_size) * units.Gi with mock.patch.object(self.driver, '_resize') as mock_resize: self.driver.extend_volume(self.volume_a, fake_size) mock_resize.assert_called_once_with(self.volume_a, size=size) @ddt.data(False, True) @common_mocks def test_retype(self, enabled): """Test retyping a non replicated volume. We will test on a system that doesn't have replication enabled and on one that hast it enabled. """ self.driver._is_replication_enabled = enabled if enabled: expect = {'replication_status': fields.ReplicationStatus.DISABLED} else: expect = None context = {} diff = {'encryption': {}, 'extra_specs': {}} updates = {'name': 'testvolume', 'host': 'currenthost', 'id': fake.VOLUME_ID} fake_type = fake_volume.fake_volume_type_obj(context) volume = fake_volume.fake_volume_obj(context, **updates) volume.volume_type = None # The hosts have been checked same before rbd.retype # is called. # RBD doesn't support multiple pools in a driver. host = {'host': 'currenthost'} self.assertEqual((True, expect), self.driver.retype(context, volume, fake_type, diff, host)) # The encryptions have been checked as same before rbd.retype # is called. diff['encryption'] = {} self.assertEqual((True, expect), self.driver.retype(context, volume, fake_type, diff, host)) # extra_specs changes are supported. diff['extra_specs'] = {'non-empty': 'non-empty'} self.assertEqual((True, expect), self.driver.retype(context, volume, fake_type, diff, host)) diff['extra_specs'] = {} self.assertEqual((True, expect), self.driver.retype(context, volume, fake_type, diff, host)) @ddt.data({'old_replicated': False, 'new_replicated': False}, {'old_replicated': False, 'new_replicated': True}, {'old_replicated': True, 'new_replicated': False}, {'old_replicated': True, 'new_replicated': True}) @ddt.unpack @common_mocks @mock.patch.object(driver.RBDDriver, '_disable_replication', return_value=mock.sentinel.disable_replication) @mock.patch.object(driver.RBDDriver, '_enable_replication', return_value=mock.sentinel.enable_replication) def test_retype_replicated(self, mock_disable, mock_enable, old_replicated, new_replicated): """Test retyping a non replicated volume. We will test on a system that doesn't have replication enabled and on one that hast it enabled. """ self.driver._is_replication_enabled = True replicated_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE_ID, extra_specs={'replication_enabled': ' True'}) self.volume_a.volume_type = replicated_type if old_replicated else None if new_replicated: new_type = replicated_type if old_replicated: update = None else: update = mock.sentinel.enable_replication else: new_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE2_ID), if old_replicated: update = mock.sentinel.disable_replication else: update = {'replication_status': fields.ReplicationStatus.DISABLED} res = self.driver.retype(self.context, self.volume_a, new_type, None, None) self.assertEqual((True, update), res) @common_mocks def test_update_migrated_volume(self): client = self.mock_client.return_value client.__enter__.return_value = client with mock.patch.object(self.driver.rbd.RBD(), 'rename') as mock_rename: context = {} mock_rename.return_value = 0 model_update = self.driver.update_migrated_volume(context, self.volume_a, self.volume_b, 'available') mock_rename.assert_called_with(client.ioctx, 'volume-%s' % self.volume_b.id, 'volume-%s' % self.volume_a.id) self.assertEqual({'_name_id': None, 'provider_location': None}, model_update) def test_rbd_volume_proxy_init(self): mock_driver = mock.Mock(name='driver') mock_driver._connect_to_rados.return_value = (None, None) with driver.RBDVolumeProxy(mock_driver, self.volume_a.name): self.assertEqual(1, mock_driver._connect_to_rados.call_count) self.assertFalse(mock_driver._disconnect_from_rados.called) self.assertEqual(1, mock_driver._disconnect_from_rados.call_count) mock_driver.reset_mock() snap = u'snapshot-name' with driver.RBDVolumeProxy(mock_driver, self.volume_a.name, snapshot=snap): self.assertEqual(1, mock_driver._connect_to_rados.call_count) self.assertFalse(mock_driver._disconnect_from_rados.called) self.assertEqual(1, mock_driver._disconnect_from_rados.call_count) @common_mocks def test_connect_to_rados(self): # Default self.cfg.rados_connect_timeout = -1 self.mock_rados.Rados.return_value.open_ioctx.return_value = \ self.mock_rados.Rados.return_value.ioctx # default configured pool ret = self.driver._connect_to_rados() self.assertTrue(self.mock_rados.Rados.return_value.connect.called) # Expect no timeout if default is used self.mock_rados.Rados.return_value.connect.assert_called_once_with() self.assertTrue(self.mock_rados.Rados.return_value.open_ioctx.called) self.assertEqual(self.mock_rados.Rados.return_value.ioctx, ret[1]) self.mock_rados.Rados.return_value.open_ioctx.assert_called_with( self.cfg.rbd_pool) conf_set = self.mock_rados.Rados.return_value.conf_set conf_set.assert_not_called() # different pool ret = self.driver._connect_to_rados('alt_pool') self.assertTrue(self.mock_rados.Rados.return_value.connect.called) self.assertTrue(self.mock_rados.Rados.return_value.open_ioctx.called) self.assertEqual(self.mock_rados.Rados.return_value.ioctx, ret[1]) self.mock_rados.Rados.return_value.open_ioctx.assert_called_with( 'alt_pool') # With timeout self.cfg.rados_connect_timeout = 1 self.mock_rados.Rados.return_value.connect.reset_mock() self.driver._connect_to_rados() conf_set.assert_has_calls((mock.call('rados_osd_op_timeout', '1'), mock.call('rados_mon_op_timeout', '1'), mock.call('client_mount_timeout', '1'))) self.mock_rados.Rados.return_value.connect.assert_called_once_with() # error self.mock_rados.Rados.return_value.open_ioctx.reset_mock() self.mock_rados.Rados.return_value.shutdown.reset_mock() self.mock_rados.Rados.return_value.open_ioctx.side_effect = ( self.mock_rados.Error) self.assertRaises(exception.VolumeBackendAPIException, self.driver._connect_to_rados) self.assertTrue(self.mock_rados.Rados.return_value.open_ioctx.called) self.assertEqual( 3, self.mock_rados.Rados.return_value.shutdown.call_count) @common_mocks def test_failover_host_no_replication(self): self.driver._is_replication_enabled = False self.assertRaises(exception.UnableToFailOver, self.driver.failover_host, self.context, [self.volume_a]) @ddt.data(None, 'tertiary-backend') @common_mocks @mock.patch.object(driver.RBDDriver, '_get_failover_target_config') @mock.patch.object(driver.RBDDriver, '_failover_volume', autospec=True) def test_failover_host(self, secondary_id, mock_failover_vol, mock_get_cfg): mock_failover_vol.side_effect = lambda self, v, r, d, s: v self.mock_object(self.driver.configuration, 'safe_get', return_value=[{'backend_id': 'secondary-backend'}, {'backend_id': 'tertiary-backend'}]) self.driver._do_setup_replication() volumes = [self.volume_a, self.volume_b] remote = self.driver._replication_targets[1 if secondary_id else 0] mock_get_cfg.return_value = (remote['name'], remote) res = self.driver.failover_host(self.context, volumes, secondary_id) self.assertEqual((remote['name'], volumes), res) self.assertEqual(remote, self.driver._active_config) mock_failover_vol.assert_has_calls( [mock.call(mock.ANY, v, remote, False, fields.ReplicationStatus.FAILED_OVER) for v in volumes]) mock_get_cfg.assert_called_once_with(secondary_id) @mock.patch.object(driver.RBDDriver, '_failover_volume', autospec=True) def test_failover_host_failback(self, mock_failover_vol): mock_failover_vol.side_effect = lambda self, v, r, d, s: v self.driver._active_backend_id = 'secondary-backend' self.mock_object(self.driver.configuration, 'safe_get', return_value=[{'backend_id': 'secondary-backend'}, {'backend_id': 'tertiary-backend'}]) self.driver._do_setup_replication() remote = self.driver._get_target_config('default') volumes = [self.volume_a, self.volume_b] res = self.driver.failover_host(self.context, volumes, 'default') self.assertEqual(('default', volumes), res) self.assertEqual(remote, self.driver._active_config) mock_failover_vol.assert_has_calls( [mock.call(mock.ANY, v, remote, False, fields.ReplicationStatus.ENABLED) for v in volumes]) @mock.patch.object(driver.RBDDriver, '_failover_volume') def test_failover_host_no_more_replica_targets(self, mock_failover_vol): mock_failover_vol.side_effect = lambda w, x, y, z: w self.driver._active_backend_id = 'secondary-backend' self.mock_object(self.driver.configuration, 'safe_get', return_value=[{'backend_id': 'secondary-backend'}]) self.driver._do_setup_replication() volumes = [self.volume_a, self.volume_b] self.assertRaises(exception.InvalidReplicationTarget, self.driver.failover_host, self.context, volumes, None) def test_failover_volume_non_replicated(self): self.volume_a.replication_status = fields.ReplicationStatus.DISABLED remote = {'name': 'name', 'user': 'user', 'conf': 'conf', 'pool': 'pool'} expected = { 'volume_id': self.volume_a.id, 'updates': { 'status': 'error', 'previous_status': self.volume_a.status, 'replication_status': fields.ReplicationStatus.NOT_CAPABLE, } } res = self.driver._failover_volume( self.volume_a, remote, False, fields.ReplicationStatus.FAILED_OVER) self.assertEqual(expected, res) @ddt.data(True, False) @mock.patch.object(driver.RBDDriver, '_exec_on_volume', side_effect=Exception) def test_failover_volume_error(self, is_demoted, mock_exec): self.volume_a.replication_driver_data = '{"had_journaling": false}' self.volume_a.volume_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE_ID, extra_specs={'replication_enabled': ' True'}) remote = {'name': 'name', 'user': 'user', 'conf': 'conf', 'pool': 'pool'} repl_status = fields.ReplicationStatus.FAILOVER_ERROR expected = {'volume_id': self.volume_a.id, 'updates': {'status': 'error', 'previous_status': self.volume_a.status, 'replication_status': repl_status}} res = self.driver._failover_volume( self.volume_a, remote, is_demoted, fields.ReplicationStatus.FAILED_OVER) self.assertEqual(expected, res) mock_exec.assert_called_once_with(self.volume_a.name, remote, 'mirror_image_promote', not is_demoted) @mock.patch.object(driver.RBDDriver, '_exec_on_volume') def test_failover_volume(self, mock_exec): self.volume_a.replication_driver_data = '{"had_journaling": false}' self.volume_a.volume_type = fake_volume.fake_volume_type_obj( self.context, id=fake.VOLUME_TYPE_ID, extra_specs={'replication_enabled': ' True'}) remote = {'name': 'name', 'user': 'user', 'conf': 'conf', 'pool': 'pool'} repl_status = fields.ReplicationStatus.FAILED_OVER expected = {'volume_id': self.volume_a.id, 'updates': {'replication_status': repl_status}} res = self.driver._failover_volume(self.volume_a, remote, True, repl_status) self.assertEqual(expected, res) mock_exec.assert_called_once_with(self.volume_a.name, remote, 'mirror_image_promote', False) class ManagedRBDTestCase(test_driver.BaseDriverTestCase): driver_name = "cinder.volume.drivers.rbd.RBDDriver" def setUp(self): super(ManagedRBDTestCase, self).setUp() self.volume.driver.set_initialized() self.volume.stats = {'allocated_capacity_gb': 0, 'pools': {}} self.called = [] def _create_volume_from_image(self, expected_status, raw=False, clone_error=False): """Try to clone a volume from an image, and check status afterwards. NOTE: if clone_error is True we force the image type to raw otherwise clone_image is not called """ # See tests.image.fake for image types. if raw: image_id = '155d900f-4e14-4e4c-a73d-069cbf4541e6' else: image_id = 'c905cedb-7281-47e4-8a62-f26bc5fc4c77' # creating volume testdata db_volume = {'display_description': 'Test Desc', 'size': 20, 'status': 'creating', 'availability_zone': 'fake_zone', 'attach_status': fields.VolumeAttachStatus.DETACHED, 'host': 'dummy'} volume = objects.Volume(context=self.context, **db_volume) volume.create() try: if not clone_error: self.volume.create_volume(self.context, volume, request_spec={'image_id': image_id}) else: self.assertRaises(exception.CinderException, self.volume.create_volume, self.context, volume, request_spec={'image_id': image_id}) volume = objects.Volume.get_by_id(self.context, volume.id) self.assertEqual(expected_status, volume.status) finally: # cleanup volume.destroy() @mock.patch('cinder.image.image_utils.check_available_space') @mock.patch.object(cinder.image.glance, 'get_default_image_service') def test_create_vol_from_image_status_available(self, mock_gdis, mock_check_space): """Clone raw image then verify volume is in available state.""" def _mock_clone_image(context, volume, image_location, image_meta, image_service): return {'provider_location': None}, True with mock.patch.object(self.volume.driver, 'clone_image') as \ mock_clone_image: mock_clone_image.side_effect = _mock_clone_image with mock.patch.object(self.volume.driver, 'create_volume') as \ mock_create: with mock.patch.object(create_volume.CreateVolumeFromSpecTask, '_copy_image_to_volume') as mock_copy: self._create_volume_from_image('available', raw=True) self.assertFalse(mock_copy.called) self.assertTrue(mock_clone_image.called) self.assertFalse(mock_create.called) self.assertTrue(mock_gdis.called) @mock.patch('cinder.image.image_utils.check_available_space') @mock.patch.object(cinder.image.glance, 'get_default_image_service') @mock.patch('cinder.image.image_utils.TemporaryImages.fetch') @mock.patch('cinder.image.image_utils.qemu_img_info') def test_create_vol_from_non_raw_image_status_available( self, mock_qemu_info, mock_fetch, mock_gdis, mock_check_space): """Clone non-raw image then verify volume is in available state.""" def _mock_clone_image(context, volume, image_location, image_meta, image_service): return {'provider_location': None}, False image_info = imageutils.QemuImgInfo() image_info.virtual_size = '1073741824' mock_qemu_info.return_value = image_info mock_fetch.return_value = mock.MagicMock(spec=utils.get_file_spec()) with mock.patch.object(self.volume.driver, 'clone_image') as \ mock_clone_image: mock_clone_image.side_effect = _mock_clone_image with mock.patch.object(self.volume.driver, 'create_volume') as \ mock_create: with mock.patch.object(create_volume.CreateVolumeFromSpecTask, '_copy_image_to_volume') as mock_copy: self._create_volume_from_image('available', raw=False) self.assertTrue(mock_copy.called) self.assertTrue(mock_clone_image.called) self.assertTrue(mock_create.called) self.assertTrue(mock_gdis.called) @mock.patch('cinder.image.image_utils.check_available_space') @mock.patch.object(cinder.image.glance, 'get_default_image_service') def test_create_vol_from_image_status_error(self, mock_gdis, mock_check_space): """Fail to clone raw image then verify volume is in error state.""" with mock.patch.object(self.volume.driver, 'clone_image') as \ mock_clone_image: mock_clone_image.side_effect = exception.CinderException with mock.patch.object(self.volume.driver, 'create_volume'): with mock.patch.object(create_volume.CreateVolumeFromSpecTask, '_copy_image_to_volume') as mock_copy: self._create_volume_from_image('error', raw=True, clone_error=True) self.assertFalse(mock_copy.called) self.assertTrue(mock_clone_image.called) self.assertFalse(self.volume.driver.create_volume.called) self.assertTrue(mock_gdis.called) def test_clone_failure(self): driver = self.volume.driver with mock.patch.object(driver, '_is_cloneable', lambda *args: False): image_loc = (mock.Mock(), None) actual = driver.clone_image(mock.Mock(), mock.Mock(), image_loc, {}, mock.Mock()) self.assertEqual(({}, False), actual) self.assertEqual(({}, False), driver.clone_image('', object(), None, {}, '')) def test_clone_success(self): expected = ({'provider_location': None}, True) driver = self.volume.driver with mock.patch.object(self.volume.driver, '_is_cloneable') as \ mock_is_cloneable: mock_is_cloneable.return_value = True with mock.patch.object(self.volume.driver, '_clone') as \ mock_clone: with mock.patch.object(self.volume.driver, '_resize') as \ mock_resize: mock_clone.return_value = {} image_loc = ('rbd://fee/fi/fo/fum', None) volume = {'name': 'vol1'} actual = driver.clone_image(mock.Mock(), volume, image_loc, {'disk_format': 'raw', 'id': 'id.foo'}, mock.Mock()) self.assertEqual(expected, actual) mock_clone.assert_called_once_with(volume, 'fi', 'fo', 'fum') mock_resize.assert_called_once_with(volume) def test_clone_multilocation_success(self): expected = ({'provider_location': None}, True) driver = self.volume.driver def cloneable_side_effect(url_location, image_meta): return url_location == 'rbd://fee/fi/fo/fum' with mock.patch.object(self.volume.driver, '_is_cloneable') \ as mock_is_cloneable, \ mock.patch.object(self.volume.driver, '_clone') as mock_clone, \ mock.patch.object(self.volume.driver, '_resize') \ as mock_resize: mock_is_cloneable.side_effect = cloneable_side_effect mock_clone.return_value = {} image_loc = ('rbd://bee/bi/bo/bum', [{'url': 'rbd://bee/bi/bo/bum'}, {'url': 'rbd://fee/fi/fo/fum'}]) volume = {'name': 'vol1'} image_meta = mock.sentinel.image_meta image_service = mock.sentinel.image_service actual = driver.clone_image(self.context, volume, image_loc, image_meta, image_service) self.assertEqual(expected, actual) self.assertEqual(2, mock_is_cloneable.call_count) mock_clone.assert_called_once_with(volume, 'fi', 'fo', 'fum') mock_is_cloneable.assert_called_with('rbd://fee/fi/fo/fum', image_meta) mock_resize.assert_called_once_with(volume) def test_clone_multilocation_failure(self): expected = ({}, False) driver = self.volume.driver with mock.patch.object(driver, '_is_cloneable', return_value=False) \ as mock_is_cloneable, \ mock.patch.object(self.volume.driver, '_clone') as mock_clone, \ mock.patch.object(self.volume.driver, '_resize') \ as mock_resize: image_loc = ('rbd://bee/bi/bo/bum', [{'url': 'rbd://bee/bi/bo/bum'}, {'url': 'rbd://fee/fi/fo/fum'}]) volume = {'name': 'vol1'} image_meta = mock.sentinel.image_meta image_service = mock.sentinel.image_service actual = driver.clone_image(self.context, volume, image_loc, image_meta, image_service) self.assertEqual(expected, actual) self.assertEqual(2, mock_is_cloneable.call_count) mock_is_cloneable.assert_any_call('rbd://bee/bi/bo/bum', image_meta) mock_is_cloneable.assert_any_call('rbd://fee/fi/fo/fum', image_meta) self.assertFalse(mock_clone.called) self.assertFalse(mock_resize.called)